Add 84/8 and 80/18
1st number: 10 4/8, 2nd number: 4 8/18
84/8 + 80/18 is 269/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
84/8 = 84 × 9/8 × 9 = 756/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
80/18 = 80 × 4/18 × 4 = 320/72 - Add the two like fractions:
756/72 + 320/72 = 756 + 320/72 = 1076/72 - 1076/72 simplified gives 269/18
- So, 84/8 + 80/18 = 269/18
In mixed form: 1417/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+80/18 84/8+80/36 84/24+80/18 84/8+80/54 84/40+80/18 84/8+80/90 84/56+80/18